/**
* Run a particular query
*/
string run_query( string query, int printlogicaltree, int printphysicaltree, int fromInsert, bool is_delete)
{
int status;
time_t start = time (NULL);
resetDIOs();
status = query2logical(query);
if ( status == -1) return "-1";
else if (status != 3) //all queries other than select return status 3
{
// THIS IS A SELECT QUERY.
if (printlogicaltree == 1) { cout << "I am printing the logical tree. " << endl;}
cout << endl;
if (logical2physical() == -1) return "-1";
if (printphysicaltree == 1) { cout << "I am printing the physical tree. " << endl;}
if (fromInsert)
return printresults (0,1);
else if (is_delete)
printresults(1,0);
else
printresults(0,0);
}
cout << endl << "Total number of disk I/Os: " << getDIOs() << endl << endl;
time_t end = time (NULL);
printf("%4.4f seconds taken to execute the query\n\n",(float)(end-start)/1000.0);
//Resetting global variables for next query
ConditionMap.clear();
conditions.clear();
P.clear();
T.clear();
Pr.clear();
return "";
}
